[Seven.]

pawn Код:

CMD:nos(playerid, params[])
{
    if(!IsPlayerInAnyVehicle(playerid); return SendClientMessage(playerid,red,"You must be in a vehicle to add nos to it!");

    new vehicle = GetPlayerVehicleID(playerid);
    AddVehicleComponent(vehicle, 1010);
    return 1;
}

Not tested but should work ;P